science review powerpoint 11/ 16/10
DESCRIPTION
Science Review PowerPoint 11/ 16/10. Annie Nelson Amelia Jones Alysa Snell. Abrasion. Abrasion is rocks rubbing together or water to make a round smooth surface. . Exfoliation. Exfoliation is the breaking down of rocks into layers. . Organic Activity. - PowerPoint PPT PresentationTRANSCRIPT
Science Review PowerPoint 11/ 16/10
Annie Nelson
Amelia Jones
Alysa Snell
AbrasionAbrasion is rocks rubbing together or water to make a round smooth surface.
Exfoliation
Exfoliation is the breaking down of rocks into layers.
Organic Activity
Organic Activity is when organisms are on the rock
Frost Wedging
When liquid water freezes it expands 9% in an outward force which makes the cracks larger …. And after many freeze thaw cycles the rock breaks into pieces.
Hydrolysis
Iron-bearing silicate minerals weather to form clays by hydrolysis.
Dissolution
Dissolving rocks slowly making Caves and Canyons.
Oxidation
Oxygen reacted with Iron forming Iron Oxide or Rust.
Acid – Carbonation, Precipitation, And Plant Acid
Carbonic Acid- Rocks changing color and texture.
Acid Rain- Creating pores in the rock.
Plant Acid- Moss slowly deteriorating the rock. :0